INDEX. Page.Abies concolor, Lindl 19,21,255 Douglasii, Lindl 257 Engelmanni, Parry 256 grandis 253 Menziesii, Lindl 7,10. subalpina, Engelm 7,255Abronia cycloptera. Gray 227 fragrans, Nutt 49,226 tmrbinata, Torr 226 villosa, Watson (Pl. XXTQ) 226ACACLffi 24Acacia 87 constricta, Benth 109 cuspidata, Schlecht 109 filicma, "Willd 109 ¦Greggii, Gray 108 Hartwegi, Benth 109 hirta, j^Tutt 109 Texensis, T."& G 109Acalypha Lindheimeri, Miill 243 phleoides, Cav 243ACAKTHACEiE 218Acerates decumbens, Dec 188Acer glabrum, Torr 83 grandidentatum, Kutt 83 tripartitum, Nutt 83Achillea Millefolium, L 174,366Aconitum ITischeri, E.eich 60,355 nasutum, Fisch 60Acropteris, Link 329Acrostiehuin,L 329Actsea spicata, L , var. arguta, Torr 60Actinella acaulis, Nutt 173 argentea, Gray 173 grandiflora, T. & G 8,174 llichardsonii, Nutt 17t scaposa, Nutt., var. linearis, Nutt 174Actinomeris longifolia. Gray 164 Wrightii, Gray (Pl. YIH) 162Adenostoma fasciculatum, Hook. & Am 152,359Adiantum Capillus-Veneris, L 325 Chilense, Torr 326 Chilense, var. hirsMum, Hook 326 Chilense, var. hirsutv/m, Keyserl 326 dilatatum, Nutt 326 emarginatum, Hook 325 emarginatum, Bory & Willd 326 pedatum, L 325 pilosum, T>. C. Eaton 326 tenerum, Torr 326 triehoiepis, F6e 326Adoxa MoschateUiua, L 8,135ffisculus Cahfomica, Nutt 357Agave Americana, var. 9 latifolia, Torr . 267 Palmeri, Engelm 24, 51,268 Page.Agave Parryi, Engelm 24,51,267 Utahensis, Engelm * 267Agriinoni.t Eupatoria, L 115Agrostis exarata, Trin 283,377 exarata, Trin., var. microphylla, Steud 377 microphylla, Steud 377 perennans. Tuck 283 scabra, Willd 283 varians, Trin 377 verticillata, Vill 283 vulgaris, With 283Ailanthus glandulosus, Desf 19,35,36,37Aira csespltosa, L 294 CEespitosa, L., var. montana 378 elongata, Hook 378 flexuosa, L 294Alectoria jubata, (L.) Fries 350Alfalfa 90 Dodder 47Alfilaria 41Algaroba 42ALISMACEiE 268AUionia incamata, L 226Allium anceps, Kellogg 269 atrorubens, Watson 269 cemuum, Eoth 269 mutabile, Mx 269 rcticulatum, Eras 269 scaposum, Benth. 209Alnus incana, WiUd., var. glauca, Ait 239 oblongifolia, Torr 239Alopecurus aristulatus, Mx 281 geniculatus, L 281Allosorus, Bernh 318Allosorus, Presl 318Allosorus acrostichoides, Spreng 318 andromedaefolius, Kaulf 320 cHspus, var. Stelleri, Milde 319 flexuosus, Kaulf 324 /oweoJaitw, Euprecht 318 gracilis, Presl 319 mucronatvs, D. C. Eaton 322 pulchelliis, Marteus & Galeotti 321Altemanthera lanuginosa, Torr 233AMAKANTACE^ 233Amarantus albus, L 235 fimbriata, Benth '. 234 Palmeri, Watson. 235 retroflftxua, L 235 Torreyi, Benth 234 Wri^ditii, Watson 235AMAKTLLIDEiE 267Amblya, Presl 337Am.blogyne fimbriata, Gray 234 Torreyi, Gray 234 381